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arXiv · 2411.11107

4H-SiC microring opto-mechanical oscillator with a self-injection locked pump

Anatoliy Savchenkov·Jingwei Li·Ruixuan Wang·Andrey B. Matsko·Qing Li·Hossein Taheri
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Abstract

We have demonstrated, for the first time to our knowledge, self-injection locking of a distributed feedback (DFB) diode laser to a multimode 4H-silicon carbide (4H-SiC) microring resonator, and observed resonant opto-mechanical oscillation in the cavity modes. While the fundamental transverse-electric mode family of the silicon carbide microring was optically pumped, Stokes light was generated in the adjacent fundamental transverse-magnetic resonant mode. The threshold of the process did not exceed 5~mW of light entering the cavity characterized with a loaded optical quality factor of $\smash{2\times10^6}$. These results mark a significant milestone in unlocking the potential of 4H-SiC through turnkey soliton microcomb generation and empowering future advancements in areas such as cavity optomechanics using this versatile and quantum-friendly material platform.

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Anatoliy Savchenkov, Jingwei Li, Ruixuan Wang, Andrey B. Matsko, Qing Li, Hossein Taheri. 2024-11-17. 4H-SiC microring opto-mechanical oscillator with a self-injection locked pump. https://arxiv.org/abs/2411.11107

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